Feel free to write an app for non-Google Android users, but not many people will buy it or even encounter it
iOS apps generate more revenue than Android
http://www.businessinsider.com/apple-app-store-revenue-per-u...
iOS apps generate more revenue than Android
http://www.businessinsider.com/apple-app-store-revenue-per-u...
I suspect he means Android-without-Play-store, rather than phone-without-Android.